Lay tiles in a cuboid swimming pool. The side length of each tile is a square of 0.2 meters and the thickness is 0.4 meters. Now a total of 255 such tiles are needed. What is the volume if these tiles are stacked together?
在一个长方体游泳池内贴瓷砖，每块瓷砖的边长是0.2米的正方形，厚0.4米，现共需255块这样的瓷砖，如果把这些瓷砖堆在一起体积是多少？
<gadget id="calculator">0.2 * 0.2 * 0.4 * 255</gadget>
<output>4.08</output>

<result>4.08</result>