What happens if you have more than 7 cards in your hand at the end of a turn in Jaipur?
You may not take an action that causes you to have more than 7 cards in your hand.  If you have 7 cards in hand, then you cannot draw 1 card from the market or trade camels for cards from the market.  And you also can't trade more camels for cards from the market than you have hand space available.  So in your example, if you have 6 cards in hand, you cannot trade 2 camels for 2 goods.