Is this supposed to be a question?????
Light basically evaporates pigments such as colored paper. Exposed pigment fading is kind of like getting colored paper wet. It will fade and bleed.
We have to determine if the given compound is soluble or insoluble in water.
The given compound is copper (II) hydroxide, 
. According to the solubility rules the hydroxides of all metal ions are insoluble except that of ammonium and the alkali metal ions. So copper(II) hydroxide will be insoluble in water. In aqueous solution, copper (II) hydroxide would exist as a sparingly soluble compound in which the undissociated compound remains in equilibrium with the ions 
and 
. The equilibrium would remain mostly towards undissociated form.
Therefore, is insoluble in water.
To remove the water that is in the organic layer. Due to sodium sulfate being a drying agents that will eventually cause water to leave.
