How to Determine Cell Reaction and Ksp of CuBr?

[lioric]

Homework Statement

Pt l H2 (1atm) l HBr (1x10^-4M) ll CuBr l Cu = 0.599 V at 298K

i) determine the overall cell reation and calculate the Ksp of CuBr at 298K
ii) What would be the effect on EMF if pressure of H2 increases from 1atm to 2atm. Why?

Homework Equations

CuBr = Cu⁺ x Br^-

The Attempt at a Solution

I don't know how to simplify this equation to ions
And can someone explain what the pressure change would do? Do i have to think about the La chatlear's principles?

 

[Borek]

Start writing two separate half cell reactions.