Alarge block of ice is sitting on a thick copper slab. the bottom surface of the slab is maintained at a temperature of 66.0°c. the upper surface, completely in contact with the ice, is at the temperature of the ice, which is 0°c. the slab is 4.00 cm thick, and has an area of 54.0 cm2. note that copper has a thermal conductivity of 401 w/(mk), aluminum has a thermal conductivity of 237 w/(mk), and the latent heat of fusion of water is 3.35 ✕ 105 j/kg.