Is it ok to feed my cat a whole can of canned cat food every day in the morning?

What size can?  I would stop feeding her dry in the bowl all day - it can lead to your cat being obese, have UTI issues, and a lot of other medical problems.  Ideally a cat should be fed twice a day with canned food (about 3-4 oz per meal) with very little dry food.  She will not get fat from canned food, but she will get fat from dry food left in a bowl all day.

I wouldn't. A can of food is what most cats need. Feed half in the morning and half in the evening. Until shes full grown you can feed some kibble mid day but do not free feed her. 

You should not leave the bowl with food in it at all times,  look up the recommended amount for her weight and feed her the correct amount twice a day.  Canned food isn't needed, dry food is better for her teeth

No, you are overfeeding your cat and it will get fat at some point. I suggest feeding it half a can in the morning and half at night, for both the canned and dry food. You can also just give your cat a small scoop of dry food for the entire day.

If you see her start to get fat then give her less.