I think "Try and X" means "Try to X and do X" which means to my mind means to attempt and, upon success of the trial, to complete X. "I’ll try and eat the sala

I think "Try and X" means "Try to X and do X" which means to my mind means to attempt and, upon success of the trial, to complete X. "I’ll try and eat the salad." could be expressed as "I'll try eating some of the salad and, if possible, finish eating it."