sigma 0.35[S/cm] Electrolyte conductivity i_app -100[A/m^2] Applied current density H 8[cm] Length of working electrode i0 5.37e-5[A/cm^2] Exchange current density Ac -0.0525*2.301[V] Tafel slope cb 5e-5[mol/cm^3] Bulk concentration of cupric ions D 4.2e-6[cm^2/s] Diffusion coefficient of cupric ions