A Styrofoam cooler has total wall area (including lid) of 0.80 m2 and wall thickness of 2.0 centimeter. It is filled with ice, water, and a cola, all at 0oC. Calculate the rate of heat flow into the cooler if the temperature is 30oC outside. k=0.027 W/mK. Obtain how much of the ice melts in three hours?