What is the standard free energy change for the following reaction at room temperature? Is the reaction spontaneous?

Question 37:What is the standard free energy change for the following reaction at room
temperature? Is the reaction spontaneous?

Sn(s) + 2Cu2+ (aq) à Sn2+ (aq) + 2Cu+ (s)

The correct answer is -F = 96500C, n=2,
Sn2+ (aq) + 2e– → Sn(s) –0.14V
Cu2+(aq) + e-  Cu+ (aq) 0.15 V
Eocell = Eocathode – Eo anode
= 0.15 – (-0.14) = 0.29V
ΔGo = -nFEo
cell
= -2 x96500x 0.29 = 55970 J/mol