For the cell:
Tl(s)/Tl+ (0.001M)// Cu+2(0.1M)/Cu(s):
Ecell = 0.83V at 298K, The cell potential can be increased by
Increasing
Decreasing
Tl(s) + Cu+2(aq) ⇌ Tl+(aq) + Cu(s)
Qc= ([Tl+][Cu+2])
E = Eo - (0.0591n)log Qc at 298 K
E = Eo - (0.0591n) log ([Tl+][Cu+2])