Two Kilograms of Ice at 0

Multiple Choice

Two kilograms of ice at 0.0 °C are placed in a sealed glass container [k = 0.80 W/(m · C°) ].The container is then placed in a room that is maintained at 30.0 °C.The top cover is a thermal insulator and all other sides of the container are exposed to room air.The surface area of the container is 6.53 × 10^-² m²;and its glass walls are 0.0050 m thick.
-Approximately,how long does it take all of the ice to melt?

A) 4.7 min
B) 7.8 min
C) 18 min
D) 36 min
E) 2.7 h