If you breed 2 shiny pokemon, would pokemon in the egg be a shiny pokemon too? If not, then is the chance if it being one higher than all other pokemon?
Whether or not the parent is shiny does not affect the rate of a shiny egg appearing. The only way to increase the rate of shinies is by using the masuda method. This increases the chance of the egg being shiny from 1/8192 to 1/ 2048 The masuda method is when you breed to different language game pokemon together. Try here. Hope this helps!
From gen. 3-5 it would still be 1/8192. in gen.2 however the chances would be much greater since they were 1/64. the masuda method increases the chance however
simplified: No