How to separate Copper(II) nitrate from Nitrogen dioxide and water?

Theres this reaction:Cu + 4 HNO3 → Cu(NO3)2 + 2 H2O + 2 NO2Id like to know how to separate Cu(NO3)2 from H20 and NO2. Which separation technique

There's this reaction:
Cu + 4 HNO3 → Cu(NO3)2 + 2 H2O + 2 NO2
I'd like to know how to separate Cu(NO3)2 from H20 and NO2. Which separation technique to use?

or:There's this reaction:Cu + 4 HNO3 \u2192 Cu(NO3)2 + 2 H2O + 2 NO2I'd like to know how to separate Cu(NO3)2 from H20 and NO2. Which separation technique to use?

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