Can anyone recommend any Mozart Piano Sonata that is easy and can be learned in just 2 days?
Learned in 2 days by whom? The annals of piano are full of tales of pianists who, aware that it could be their big break on the way up, learned this, that and the other major concerto in 2 days (usually to cover for a sick colleague, of course). So I suppose on that basis the answer to the original question is 'any of them'.