system
Given the following post, respond as if you're commenting on Reddit:
human
If I had a 1 dollar coin, could I theoretically flatten it to the point where the coin would cover the entire Earth?

Also would the atom need to subdivide? What would happen at that point?

Edit: looking at such a large discussion about coins and atoms stemmed off from one question that I had is the weirdest feeling ever.
gpt
A dollar coin has a mass of about 8.1 grams. For simplicity assume it to be all made out of copper (it's really about 90% copper). Copper has an atomic density of 63.55 grams/per mole, giving us 7.68 x 10^22 atoms in a dollar coin. The earth has a surface area of 5.1 x 10^8 km^2, so that if the coin were smashed until it was just a one atom thick layer of material (to maximize how far we can spread it) covering the entire earth, then each atom would occupy an area of about 7000 square microns. If the atoms were arranged in a square lattice, each copper atom would be at least 80 microns away from the next nearest atom. For regular bulk copper, atoms are spaced about 0.4 nm apart. So, the atoms would be about 200,000 times too far away from each other to form stable chemical bonds. Simply put, you no longer have a solid chunk of metal if you want it to cover the earth. You have a very sparse copper gas. 

If you subdivide the atoms, you don't have copper anymore. But subdividing won't really help anyways. If you manage to divide each copper atom into 29 hydrogen atoms (ignoring all the messy details of nuclear reactions), then the hydrogen atoms would still be 15 microns away from each other, still several thousands times too far apart to form bonds.