import Clipboard from '@react-native-community/clipboard';
<TouchableOpacity onPress={() => Clipboard.setString('mail@mail.com')}>
<View>
<Text style={{color: 'red', fontSize: 14 , fontFamily:'Arial', fontStyle: 'bold', textAlign: 'center', marginTop: 3, marginLeft: 25, marginBottom: 17}}>
mail@mail.com
</Text>
</View>
</TouchableOpacity>