the reduction of oxygen $($O$2+2$H$2$O $+4$e$-4$OH$-),$ is possible in this environment:

io$,$ O$2=10-8$ A$/$cm$2$

Limiting current density for oxygen: iL$=5*10-6$ A$/$cm$2$

$$O$2=+0\mathrm{.}420$ V

Create a potential vs$.$ current density plot and determine the corrosion current density for impossibrium in this state.