You can put on that much weight in 10 weeks no problem. I put on that kinda weight when I started lifting a couple years ago. The trick to putting on lean and powerfull muscle and not just big stupid muscles isnt so much about what you eat(allthough very important) but when you eat. If you watch power lifters they eat a good portion of protien about half and hour before they hit the weights, they drink a crap load of water and before the work out is done they're already into their recovary shake. Your recovary shake is where it all goes wrong for most people. After a work out you need about double the carbs than protein. If you take it within the first 30 min after your workout what you dont use in rebuilding the muscle along with the protien you store as Glycogen. The more water in the shake the better as it helps you rehydrate what youve lost. Dehydrated muscles dont repair very well.
At the same time you need to eat a solid meal, or a couple smaller ones that are balanced between the two althletes food groups - Protien and Carb.
The trick to the weight gain is managing it properly. Some guys need the extra mass, some guys dont. Its how it goes.