For your cabin in the wilderness, you decide to build a primitive refrigerator out of Styrofoam, planning to keep the interior cool with a block of ice that has an initial mass of24.0 kg. The box has dimensions of 0.500 m X 0.800 m X 0.500 m. Water from melting ice collects in the bottom of the box. Suppose the ice block is at 0.00oC and the outside temperature is 21.0oC. If the top of the empty box is never opened and you want the interior of the box to remain at 5.00oC for exactly one week, until all the ice melts, what must be the thickness of the Styrofoam?