Chapter 19, Problem 3E

$E_{\text{col}}^{°}=0.201\text{V}$ for the reaction

$3\text{Pt}\left(s\right)+12{\text{Cl}}^{\text{-}}\left(\text{aq}\right)+2{\text{NO}}_{\text{3}}{}^{-}+8{\text{H}}^{+}\left(aq\right)\to 3{\left[{\text{PtCl}}_{\text{4}}\right]}^{2-}\left(\text{aq}\right)+2\text{NO}\left(g\right)+2\text{NO}\left(\text{g}\right)+4{\text{H}}_{\text{2}}\text{O}\left(\text{l}\right)$

What is $E°$ for the reduction of ${\left[{\text{PtCl}}_4\right]}^{2+}$ to Pt in acidic solution?