Which is proper value of x for the following to increase cell potential of
\(\mathrm{Zn}_{(\mathrm{s})}\left|\mathrm{Zn}_{(x \mathrm{M})}^{2+}\right|\left|\mathrm{Cu}_{(0.02 \mathrm{M})}^{2+}\right| \mathrm{Cu}_{(\mathrm{s})}\)
1
x = 0.02 M
2
x < 0.02 M
3
x > 0.02 M
4
x ≥ 0.02 M