A square iron plate with a side length of 2.4 decimeters, a small square is removed from each of the four corners, and the remaining parts are just welded into a cube container without a cover. What is the area of the cube container in square decimeters?
边长2.4分米的正方形铁板，四角分别去掉一个小正方形，剩下的恰好焊成一个无盖的正方体容器，这个正方体容器的占地面积是多少平方分米．
<gadget id="calculator">2.4 / 3</gadget>
<output>0.8</output>

<gadget id="calculator">0.8 * 0.8</gadget>
<output>0.64</output>

<result>0.64</result>