Hep C can stay alive from 16hours to 4 days outside the body. Which means, for example, if a tiny drop of hep C infected blood were on a razor and someone else used it and cut themselves, they could become infected.
There still needs to be that blood to blood contact for the virus to spread.
I would consider the source of where you are reading this information. Is it a reputable web site like the CDC or the national institute of health? Also I have seen some longer times but that would be a special situation involving the correct environment and the sample being undisturbed. When in doubt clean the surface up with bleach.
Hep c is difficult to transmit and requires blood to blood contact so in order to catch hep c blood containing the virus would need to enter an open wound. I would not concern myself overly with hep c on surfaces. I have not seen any reports of a person getting hep c from touching a surface.