Standard Cell Potential

There is a voltaic cell constructed from a standard zinc electrode and a standard copper electrode both placed in the same sulfuric acid (H2SO4).

(-)Zn/H2SO4(aq)/Cu(+)

The following reactions occur:

oxidation: Zn(s) -----> Zn2+(aq) + 2e-
reduction: 2H+(aq)+2e- -----> H2(g)
--------------------------------------------------
net: Zn(s) + 2H+(aq) ------> Zn2+(aq)+H2(g)

Now, I need to calculate the standard cell potential of the above volatic cell.
I subtracted the standard reduction potential of Zn2+(-0.76V) from H+(0.00V) to get 0.76V.

However, some books say it is indeed 0.76V while others say it is 1.1V
(Which is calculated by subtracting the reduction potential of Zn2+(-0.76V) from Cu2+(+0.34V)).

Which is the correct answer?