Which cell will measure standard electrode

Question:
Which cell will measure standard electrode potential of copper electrode?

(i) Pt (s) H2(g,0.1 bar) H+ (aq.,1 M) Cu2+(aq.,1M) Cu

(ii) Pt(s) H2 (g, 1 bar) H+ (aq.,1 M) Cu2+ (aq.,2 M) Cu

(iii) Pt(s) H2(g, 1 bar) H+ (aq.,1 M) Cu2+ (aq.,1 M) Cu

(iv) Pt(s) H2 (g, 1 bar) H+(aq.,0.1 M) Cu2+ (aq.,1 M) Cu

Solution:

Option (iii) Pt(s) H2(g, 1 bar) H+ (aq.,1 M) Cu2+ (aq.,1 M) Cu is the answer.