Step-by-step explanation:
Heat = mc(change in temp.)
m=mass , c = specific heat
Rate of flow of heat = heat current = kA/L(T2-T1)
So, mass = densityĆvolume
So, mc(T2-T1)/time =
kA/L(T2-T1)
Substitute the values given as there are a lot of values missing, so the answer can not be obtained.