An ice chest is constructed of Styrofoam (k = 0.033 W/m?C) with inside dimensions of 25 by 40 by 100 cm. The wall thickness is 5.0 cm. The outside of the chest is exposed to air at 25 ?C with h = 10 W/m2?C. If the chest is completely filled with ice, calculate the time for ice to completely melt. State your assumptions. The heat of fusion for water is 330 kJ/kg.